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Finding the Fourth Proportional to 197,140.80, 295,549.20 and 84,907.20

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Solution

The fourth proportional to 197,140.80, 295,549.20 and 84,907.20 is: 127,291.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    197,140.80 : 295,549.20 = 84,907.20 : x
  2. Step 2: Convert to fraction form
    197,140.80/295,549.20 = 84,907.20/x
  3. Step 3: Cross multiply
    197,140.80x = 295,549.20 × 84,907.20
  4. Step 4: Simplify right side
    197,140.80x = 25,094,255,034.24
  5. Step 5: Solve for x
    x = 25,094,255,034.24/197,140.80
  6. Step 6: Final answer
    x = 127,291.03

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.